I have problems with all accent-outputs. I allready did some measurement with the oszillosop and found following:
The ATMega1284 delivers +5V levels on MUX_A, ... INH_MUX2. Thats correct.
IC3 (4049) should make something like an inverting level converter from TTL level to +15V, but this is not working. All 6 Outputpins (A, B, C, INH1, INH2) just go from +15V (highlevel) down to +6V (low level - instead of +0V).
The following 4051 (IC114, IC111) are not able to work with this too high low level and all the intruments stay muted.
Can anybody help with this problem ? Is there a special 4049 type which works better ?
I read in other forum entrys that others have also problems with the accents and blame the 4051 for this. I think, the problem can be the 4049....
Yocto 2.0 Accent Trigger mutes instruments
Hi there,
Use the CD4049UB from Texas instrument. It should work
Use the CD4049UB from Texas instrument. It should work
Best regards,
e-licktronic
e-licktronic